On 2012-12-05, Andrew Mathas <andrew.mat...@sydney.edu.au> wrote: > ------=_Part_1499_29645117.1354701799117 > Content-Type: text/plain; charset=ISO-8859-1 > > > >> - Matrices with rows and columns indexed by whatever objects >> > > I have a (very) rough prototype for this as it is one of the things that I > need. Rather than matrices, however, I am thinking of making the underlying > object just an array/table as for my applications the full matrix is often > not known and more entries are added as the calculations proceed whereas > matrices are immutable. huh? sage: m=matrix([[1,2],[3,4]]) sage: m [1 2] [3 4] sage: m[1,1]=100 sage: m [ 1 2] [ 3 100] sage:
-- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
